Electric regulation.



J. L. CREVELING.

ELECTRIC REGULATION. APPLICATION FILED N0V.21,191o

Patented Nov. 7, 1911.

O wh,

v NXTE) S ATES PATENT OFFICE.

JOHN L. CREVELING, GF NEV YORK, N. Y.,

LIGHTING CGMPANY, A CORFORATIGN F NEW' ASSIGNOR TO SAFETY CAB; HEATING ANI) JERSEY.

ELECTRIC REGULATIN.

renee-i3.

Specification of Letters Patent.

Patented Nov. '7, 1911.

Application fried November 21, 191.0. Serial No. 593,319.

My invention has iter its particular el,

'ject te provide means; whereby a, dynamo er gmierater may be automatically governed er .eentrelletl in such manner aS te preperiy charge a storage battery and opere-te lampe er tranalatiiig devices.

Figure 1 is a tliagrai'nmatie representation n? ene type of system embodying the essentials et my invention. Fig. 2 is a liagran'imatie rei'iresentatien uit slightly modified tOi-m 0f System embodying my invention.

in the drawing, referring particularly to Figui 1 represents a dynamo er generator provitlet'l,withthe usuallieliieeil 2 haring in series therewith a regulating elei'nent in thisl instance indicated aS a. carbon Ypile et represents the positive lead of the generator whirh is eenneeteii with one side et the eter age lmtt'eriY 5 and one aide et the lamps nr ether translating iiei'iees indicated at. (i. `iie remaining!` terminale 03 the battery and translating devices 6 are carried te the lead 7 whirh is leii tl'irmigl'i series eeil 8 te the negative side et the generzitmn The coil 8 surrounds the eere .l of magnetic material, in such manner that when energized. it tends to (lraw the same in a downward clirei'ztien. The eure 9 is carried by the bell crank lever l0, normally drawn in an Upward (iireetifm as hy the adjustable Spring 11. in. sur'h inanner as te tenti te compress the. ear-hon 'pile and Ylnwer the resistance thereof. 1Q is fr milv el' tine wire sari-minding; 'the Core f3 anti having@ (me et Vits etais emineeteci with the lead i as hy wire anii the other enti eenneeteii as hy wire 14 with the switch eentiael; 15. 16 is a coarse wire Carried from a peint et the lead 7 between the generator and the eeii 8. to the switch Contact, 17. Switch Contact 18 is connected with the iezrd 4 and the switch Contact; 19 is connected with the lead 7 as indicated. -20 is an armature a rise in ffm-rent in the magnet provided with contacts 21 and 22 electrically insulated from each other and normally lr-.rwn in a downwartfl direction against the adjustable step 2-1 as by adjustahie Spring 25. rihe contacts 21 and 22 are so arranged that when lever is raised they will cause eleetrii'il eemiminieaton between 15 and 18 i and between 17. and. 15). 26 is zin electromagnet in shunt to the battery 5, which, when energized, tends to lift the lever 9.0. L17 is an adjustable resistance in series with the eireuit containing the eeil 1:2 whereby the current in said eeii may be mijne-led.'

The niif'iratitm et my invention whenemhmiieil in a slistem herein Shown in Fie'. 1 for illustration is suliistantially as feliews r--terting' with the generator charging batteries which we will consider as below r nnrmal voltage. current wili 110W 'from the generator., through' the tiehl 2 and earlum pile witzige et. the Agenerator will 'dep-emi upon. the resistance el? the carbon pile Current will flew tram the generator through ieatl i, stm-age hattery 5 and translatingp devices t3 they he in circuit and return to the generator threaegh lead 7 and eeii T1 new sie :u ljufst the spring; l1 that when the maximum rari-ent desir-eti te have furnieheii hy the geiieiatur is reached. the eeil S will Cause the core t) te he drawn flewn iardiy S0 ae to iiirea ze the reaist'anee 5% and thus reguiate the generator voltage se that this, maximum emru rent wiii not he exi-verlaat. 1f new, the geinerater mn'iuue to supply this current and th us hereje the hatte-ry, the voltage upon the battery will jrailualiy rise. 'ihiS will eatiee Q6 inasmuch as the saine in shunt actress the Circuit, and l S0 ziiijuet the spring' 25 that when the maXi mum i'lesiretl voltage avi-eee the hatterya for example substantially its iuliy' charged Ve-it age. he reaeheth the eeil. 26 wiii lift the armature Q0 against, the action of spring' amt fiese the contat-ts 15, :21. 18 and 1'?, E22, 19. This; will shunt eut the rurrent', regulalt# in;y will 5% and throw the Voltage regulating mil i`in eireiiit across the battery and gen-Y erator. l new Se adinet. the adjustable resistance 27 that the current in the `v0ltvage mil 1Q.y with the maximum desired, voltage :ternes the line will cause the coil l2 to exert a Substantially equal pull upon the core 9 as did the coil 8 when the maximum current -B in a, well known manner and the 'Was flowing theretlnough` Under these contheir charging current gradually tapered ott` to zero as their voltage rises.

From the foregoing. it will be plain that have lproduced a system wherein the storage batteries may be automatically charged at a constant rate or under currentl control until a certain desired voltage is reached, when the current controlling `t'eature is sup` pressed or rendered imiperative and tin` regulator becomes a voltage regulator charging the batteries on a constant voltage circuit.

It will be obvious that the coil S may be placed in series with the battery connection in Fig. 2 I

to the main circuit as shown instead of in series with the main circuit and tlren the current control ot' the generator will depend upon current delivered to the l'iattery instead of the total currenty delivered by the generator', or the coil 8 may be placed in series with any circuit, the current in which it is desired to malte a regulating factor of the generator.

I do not wish in any Way to limit myself to the exact details of the system shown in the drawing suhlnitted herewith as a merc diagrammatic representation of one type of system embodying my invention nor to the, exact mode of operation outlined as a dcscription of this diagrammatic system used for illustration merely, as it will be plain that 'wide departure in the Way of details ot' i construction and operation may be made Without depart-ing from the scope of my inA vent-ion, which is as set forth in the following claimszl. Means for regulating a generator comprehending current regulating means, volt,- age regulating means and means for rendering one ot' the above mentioned regulating means operative and the other inoperative.

2. Means for regulating a generator comprehendin'g current regulating means, voltage regulating means and means for rendering one of the above mentioned regulating means operative and the other inoperative depending upon the voltage ofthe generator.

3. Means for regulating a, generator comprehending current regulating means, volt.-

age regulating means and means for rendering one of the above mentioned regulating means operative and the other inoperative, depending upon. the voltage of a. circuit supplied by the generator.

4. Means t'or regulating a generator comprehending current re ,ulating means, voltage regulatingr means and means For maintaining ono only of the above regulating means operative.

5. The combination with a. generator and t t t current changes in said supplyl circuit and means responslve to voltage changes across said supply circuit and automat-io means for seleetnig which of said operating means shall be operative.

G. The combination Witha generator and a supply circuit of means for regulating the generator comprising means responsive to current changes in said supply circuit and means responsive to voltage changes across said supply circuit. and automatic means t'or selecting which of said operating mansl shall be operative depending upon thel voltage across the supply circuit.

7. dcans tor regulating a generator comprelwnding a current; coil and a voltage coil, and automatic means for determining which ot' lsaid coils shall regulate the generator.

S. Means t'or regulating a generator' comprehending a current coil and a voltage coil,

and automatic means for leternlining which.,

which of said coils shall regulate the geni crator.

. lt). Means tor regulating a generator comprehendng a current coil and a voltage coil, and \oltage operated means tor determining which otl said coils shall predominate in the regulation of the generator throughout changes in its` operation.

l l. 'l`he combination with a. generator of regulating means, comprehending means for holding the current output constant, and means for holding the voltage constant, and automatic means tor determining which o't said means shall ctl'cct the regulation ot' the generator tion.

12. lhe combination with a generator and regulating means therefor. of means for affecting the regulating means responsive to current t'lnetuations, means' for' affecting the regulating means responsive to volte [tuctuations and automatic, means t'or controlling the current in both of said operating means.

13. The combination with a source of electrou'iotive force. a supply circuit' and a storage battery, of means for regulating said electromotive torce, current operated means 'For controlling the regulating means, voltage operated means t`or controlling the regulating means` and automatic means depending upon conditions ot the supply circuit t'or determining which oft said controllingmeans shall be muerative.

14. lhe combination With a source ot electromotive force, a supply circuit and a sto-r throughout changes in its opera.-

age battery, of means for regulating said electromotire force, current operated means for controlling the regulating means, voltage operated means for controlling the regu lating means, and automatic means depending upon conditions ot the supply circuit for atl'ecting the operativeness of both said con trolling` means.

' l5. The combination with a source of electromotive force and a supply circuit of means for regulating said electromotive force. operating means for said regulating means reslionsire to iuctuations in current, operating means for said regulating means responsive to voltage fiuctuations, and automatic mlans tor determining which of said operating means shall predominate in the regulation ot' said electromotive force upon tendencies of the same to vary.

lt". The combination with a source of electromotive force, of means for etfecting current regulation ot' said electi'omotive force, means tor etl'ecting voltage regulation of said electromotive force, and supplemental means for automatically determining which ot said before mentioned means shall regulate the said eiectromotive force.

1.7. The combination with a source of electromotive force, means tor regulating the same att'ected bv current due to said. electromotive force and affected by voltage tluctuations at said source, ot automatic means tor determining whether the said electromotive force be governed in response to current or voltage thictuations.

18. The coml'iination `vith means for maintaining a ditl'erence of electrical potential, of means tor .regulating said difference ot potential comprchemling current responsive means, voltage responsive means and means for determining which ot said respnisive means shail predominate in the regulation of said (litter-ence ot' potential.

l5). The "omlnnation with mains formaintaining a dili'ci'rnce of electrical potential, of means tor regulating said difference of potential ccmprehending current responsive means and xoltage responsive means and means tor determining which ot said rcsponsive means shall regulate said difference of potential.

20. The combination with means for maintaining a difference of electrical potential, ot', means for regulating said dili'erence ot' potential comprehending a voltage responsive coil, a current responsive, coil and automatic means for affecting the current in both said coils.

2i. The combination of means for maintaining a difference of electrical potential, qt means for regulating said ditlerence ot potential comprehending a current coil, a voltage coil, and automatic means for determining which o?? said coils shall predominatein the regulation of said difference of potential throughout tendencies to change. l

22. The combination witha generator,of means tor regulating the same comprehending a current coil, a voltage coil, and automatic means for varying the operative effects of both said coils.

23. The combination with a generator, of means for regulating the same and providing both current and voltage regulation the] :for and automatic means for determining whether the generator shall he current regulated or voltage regulated.

24. The con'ibination with a generator, an external circuit, and means tor utilizing current therein, of vmeans for regulating the generator comprehending means responsive to current fluctuations in said circuit, means responsive to voltage fluctuations across said circuit and automatic means for determining which ot' said responsive means shall predominate in the regulation of said generator.

25. The combination with a generator and a supply circuit, ot a regulator for the generator comprising a coil in serieswith the supply circuit, a` coil in shunt across the supply circuit, and automatic means for increasing the operativeness of the shunt coil and decreasing the opeiativeness of the series coil.

JOHN L. CREVELING. l'Vitnesses:

M. l-InnsKovrrz, A. E. Tonus. 

